Probiotic Prophylaxis for Immunosuppressant Associated Diarrhea (IAD) Following Kidney Transplantation

July 22, 2011 updated by: Swedish Medical Center

Probiotic Prophylaxis for Immunosuppressant Associated Diarrhea (IAD) Following Kidney Transplantation: a Single Center Randomized Controlled Trial

We hypothesize that the administration of a combination of high numbers of probiotic bacteria will maintain normal bowel function and significantly moderate or obviate Immunosuppression Associated Diarrhea following kidney transplantation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Immunosuppression following organ transplantation is associated with a myriad of gastrointestinal complications including severe diarrhea. Mycophenolate mofetil (MMF) is the immunosuppressant most often associated with this plaguing symptom. A retrospective study of patients from 10 US transplant centers receiving MMF immunosuppression after kidney transplantation showed that nearly 50% of patients suffered from at least one gastrointestinal symptom within the first 6 months after transplantation. (Tierce 2005) The majority of these patients have diarrhea. However, Immunosuppression Associated Diarrhea (IAD) is often observed in association with other immunosuppressive agents as well. It is the investigator's observation that IAD is equally problematic whether the immunosuppressive regimen includes MMF or not. When IAD is severe it can be difficult for the recipient to maintain adequate levels of immunosuppression. Not infrequently, IAD is so distressing that a recipient's immunosuppressive medications are tapered, changed or stopped. During these times of drug manipulation, patients are at risk for early acute rejection. Approximately 30% of renal transplant patients who have their MMF regimen adjusted or discontinued suffer an episode of acute rejection. Reversing a rejection episode is expensive and adds significant risks for the recipient and long-term allograft survival. Thus, a strategy to support and maintain normal healthy bowel function moderating or obviating IAD is highly desirable.

Repopulation of the normal intestinal microflora in kidney transplant patients after kidney transplantation may maintain normal bowel function. This study is designed to test the hypothesis that the administration of a food supplement probiotic consisting of high amounts of six strains of lactic acid bacteria normally found in the human colon will favorably support and maintain bowel function moderating or obviating IAD.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
44

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Washington
      • Seattle, Washington, United States, 98122
        • Swedish Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • all subjects aged >/= 18 years who qualify to receive a living (related or unrelated) or cadaveric kidney allograft using steroid free induction immunosuppression.
  • single organ recipient (kidney only)
  • subjects receiving first or second renal transplant
  • women of child-bearing potential should have a negative serum pregnancy test within 1 week prior to beginning study medications
  • subjects with no known contraindications to treatment with any of the study drugs
  • subjects providing written consent
  • subjects who are compliant and able to complete all the necessary assessment procedures

Exclusion Criteria:

  • Subjects < 18 years of age
  • Subjects who do not meet criteria for steroid free protocol
  • subjects with known intolerance to lactobacillus
  • subjects with history of chronic diarrhea
  • subjects with history of gastrointestinal disorder that may interfere with their ability to absorb oral medication: inflammatory bowel disease, irritable bowel syndrome, short gut syndrome, or ileo jejunal surgery
  • subjects with known laxative abuse
  • subjects with pancreatic insufficiency
  • subjects who are pregnant, lactating or nursing
  • subjects with active peptic ulcer disease
  • child bearing women not willing to use a reliable form of contraception
  • subjects with prior history of C. difficile
  • subjects receiving other medications considered to be experimental for control of diarrhea

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: I
Placebo
Other: Placebo
placebo
Experimental: II
Probiotic supplement
Drug: Probiotic Supplement
2 capsules twice daily

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
To maintain normal bowel function and significantly moderate or obviate Immunosuppression Associated Diarrhea following kidney transplantation, utilizing a daily questionnaire, stool cultures and C. Difficile.
Time Frame: 5 months
5 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Determine the impact of IAD on therapeutic drug levels. Taper or change of immunosuppressive medications due to IAD.
Time Frame: 5 months
5 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Swedish Medical Center

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Hoffmann-La Roche

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: William H Marks, MD, PhD, Swedish Medical Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2006

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2009

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2009

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 11, 2006

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2006

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 15, 2006

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 26, 2011

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 22, 2011

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CEL346 (Main)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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